public void IsAvailable_OnNoPrerequisite()
{
// Build mockup objects with no pre-requisites.
var factory = new CourseMockupFactory();
var course = factory.BuildDummy(1);
var completedCourseDictionary = new Dictionary <int, bool>();
completedCourseDictionary.Add(course.Id, false);
// If course is not completed and has no pre-requisite, should return true.
Assert.IsTrue(CourseAvailabilityChecker.IsAvailable(completedCourseDictionary, course));
// If course is completed, should return false.
completedCourseDictionary[course.Id] = true;
Assert.IsFalse(CourseAvailabilityChecker.IsAvailable(completedCourseDictionary, course));
}
public void IsAvailable_OnIncompletePrerequisite()
{
// Build mockup objects with no pre-requisites.
int n = 5;
var factory = new CourseMockupFactory();
var courses = factory.BuildDummyList(5);
factory.SetPrerequisiteAsFirstCourse(ref courses);
// Set that no course has been completed.
var completedCourseDictionary = new Dictionary <int, bool>();
for (int i = 0; i < courses.Count; i++)
{
completedCourseDictionary.Add(courses[i].Id, false);
}
// As all courses requires first course id (1) and given that no course has been completed,
// The second to last course should return false, while the first one should return true.
Assert.IsTrue(CourseAvailabilityChecker.IsAvailable(completedCourseDictionary, courses[0]));
for (int i = 1; i < n; i++)
{
Assert.IsFalse(CourseAvailabilityChecker.IsAvailable(completedCourseDictionary, courses[i]));
}
// Second case, try for partial pre-requisite match.
// Set course 3 (index: 2) to require course 2 (on top of 1).
int targetIndex = 2;
courses[targetIndex].Prerequisites.Add(2);
// Mark course 1 as completed.
completedCourseDictionary[1] = true;
// As course 3 requires 1 and 2, and only 1 is completed, this should return false.
Assert.IsFalse(CourseAvailabilityChecker.IsAvailable(completedCourseDictionary, courses[targetIndex]));
}
public void IsAvailable_OnNullCourseParameter()
{
// Pass null course parameter.
CourseAvailabilityChecker.IsAvailable(new Dictionary <int, bool>(), null);
}
public void IsAvailable_OnNullDictionaryParameter()
{
// Pass null completedCourseDictionary parameter.
CourseAvailabilityChecker.IsAvailable(null, new Course());
}